This phase 1a/1b, open-label, non-randomized study aims to determine...preliminary efficacy of BI 1810631 in patients with HER2 aberration-positive solid tumors (NCT04886804)…. In 23 patients evaluable for response the overall response rate (ORR) was 39% (n=9; NSCLC: n=7; esophagus, cholangiocarcinoma: n=1). The disease control rate (DCR) was 83%.